Car Horn 12/24V Universal Car Horn Speaker Auto Modification Accessory Car Air Horns 110db Three-Tube HornThis horn, suitable for a variety of 12.0V/24V car, ships, trains, etc, can effectively alert pedestrians and vehicles, improve safety.Features:Widely applicable, most of the 12.0V and 24V car models can be applied, compatible with large trucks, buses, mining car, also suitable for some ships, trains.Three-tube design, improve efficiency, sound more loud.The sound is loud and the frequency is stable, which can effectively warn pedestrians and vehicle and increase the driving safety.It is made of fine-quality materials, not easy to rust, not easy to deform and has long service lifes.It is easy to install and operate.Specifications:Material: MetalMain Color: Silver+BlackHorn Diameter: 90mmHorn Length 262mm+300mm+341mmItem Size: 394 * 258 * 100mm / 15.5 * 10.2 * 3.9inItem Weight: 1739g / 3.8lbPackage Size: 400 * 280 * 110mm / 15.7 * 11.0 * 4.3inPackage Weight: 1978g / 4.4lbNote:This product needs to be used with horn compressor.Packing List:1 * Car Horn1 * Set of Installation Tools